Answer the following questions to the best of your ability.

If you are right, you get 2 points. A wrong choice takes away 2 points. Not answering gives you 0 points. The maximum amount of points is 30. Remember to save your answers!

1. A functional electric circuit can be made by combining a source of electric tension, a resistor and a conductor.
I cannot say.
That is correct.
That is incorrect.

2. Lemons, apples and potatoes can be used as electrical power sources.
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That is correct.
That is incorrect.

3. There are three types of electric circuits: large, small and medium-sized circuits.
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That is incorrect.

4. The function of a battery is based on chemical energy.
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That is incorrect.

5. The function of a generator is based on chemical energy.
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That is incorrect.

6. The function of a photoelectric cell is based on the heat produced by the Sun.
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That is incorrect.

7. The function of an incandescent light bulb is based on a heat resistor or a filament.
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That is incorrect.

8. The function of an incandescent light bulb is based on a semiconductor material.
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That is incorrect.

9. The function of an LED lamp is based on a semiconductor material.
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That is incorrect.

10. A conductor becomes an electromagnet when a circuit is closed.
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That is incorrect.

11. The power of an electromagnet will grow, if the conductor is made into a coil.
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That is incorrect.

12. It is impossible to produce movement with electromagnets.
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That is incorrect.

13. You should always familiarize yourself with the instructions before using an electronic device.
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That is incorrect.

14. You do not need to follow the instructions when using an electronic device.
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That is incorrect.

15. It is safe to fix and improve electronic devices yourself.
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That is correct.
That is incorrect.